我搜索了整个WWW但没有得到任何帮助。任何解决方案将不胜感激。提前谢谢
我的HTML
<div class="row">
我的案例中是否需要表格标签
<form>
<div class="form-group">
<label for="date" class="col-12 col-md-2 control-label"><?php echo 'Date';?>
</label>
<div class="col-12 col-md-3">
<input type="text" class="datepicker form-control" name="date" id="date">
</div>
</div>
这里我从数据库中获取数据
<div class="form-group">
<label for="class_id" class="col-12 col-md-2 control-label"><?php echo
get_phrase('Select Class');?></label>
<div class="col-12 col-md-3">
<select name="class_id" class="form-control" id="class_id" onchange="return get_attendance()" >
<option value=""><?php echo get_phrase('select class');?></option>
<?php
$classes = $this->db->get('class')->result_array();
foreach($classes as $row):?>
<option value="<?php echo $row['class_id'];?>"><?php echo $row['name'];?></option>
<?php endforeach; ?>
</select>
</div>
</div>
</form>
</div>
我正在使用datatable类进行导出和打印
<table class="table table-bordered datatable" id="table_export">
<thead>
<tr>
<th>#</th>
<th><div><?php echo get_phrase('Status');?></div></th>
<th><div><?php echo get_phrase('Student Name');?></div></th>
<th><div><?php echo get_phrase('Class Name');?></div></th>
<th><div><?php echo get_phrase('Date');?></div></th>
<th><div><?php echo get_phrase('options');?></div></th>
</tr>
</thead>
<tbody>
<?php
$count = 1;
foreach($attendance as $row):?>
<tr>
<td><?php echo $count++;?></td>
<td><?php echo $row['status'];?></td>
<td><?php echo $row['student_id'];?></td>
<td><?php echo $row['class_id'];?></td>
<td><?php echo $row['date'];?></td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
我的JavaScript
以下脚本alert（）class_id和date但不传递任何内容到控制器函数
<script type="text/javascript">
function get_attendance() {
var class_id = $('#class_id').val();
var date = $('#date').val();
$.ajax({
type: "post",
dataType:"json",
data: {"class_id": class_id, "date": date},
url: '<?php echo base_url();?>index.php?admin/manage_attendance',
success: function (data) {
}
});
}
</script>
我的控制器
如果我将$date和$class_id的静态值设为$date = '04-04-2018'; $class_id = 2; manage_attendance()，则可以使用$this->input->post()无效：
function manage_attendance()
{
if($this->session->userdata('admin_login')!=1)
redirect(base_url() , 'refresh');
$date = $this->input->post('date');
$class_id = $this->input->post('class_id');
$page_data['attendance']= $this->db->get_where('attendance', array('class_id' => $class_id , 'date' => $date))->result_array();
$page_data['page_name'] = 'manage_attendance';
$page_data['page_title'] = get_phrase('manage_daily_attendance');
$this->load->view('backend/index', $page_data);
}
答案 0 :(得分：0)
尝试更改
url: '<?php echo base_url();?>index.php?admin/manage_attendance'
到
url: '<?php echo base_url();?>index.php/admin/manage_attendance',
答案 1 :(得分：0)
我可以通过以下编码得到相同的结果，但我不喜欢我想要的东西，因为我已经在上面发布了
<强> HTML
<div class="form-group">
<label for="class_id" class="col-12 col-md-2 control-label"><?php echo
get_phrase('Select Class');?></label>
<div class="col-12 col-md-3">
<select name="class_id" class="form-control" id="class_id" onchange="return get_attendance()" >
<option value=""><?php echo get_phrase('select class');?></option>
<?php
$classes = $this->db->get('class')->result_array();
foreach($classes as $row):?>
<option value="<?php echo $row['class_id'];?>"><?php echo $row['name'];?></option>
<?php endforeach; ?>
</select>
</div>
</div>
</form>
</div>
<table class="table table-bordered datatable" id="table_export">
<thead>
<tr>
<th>#</th>
<th><div><?php echo get_phrase('Status');?></div></th>
<th><div><?php echo get_phrase('Student Name');?></div></th>
<th><div><?php echo get_phrase('Class Name');?></div></th>
<th><div><?php echo get_phrase('Date');?></div></th>
</tr>
</thead>
<tbody id="putdatahere">
</tbody>
</table>
的JavaScript
<script type="text/javascript">
function get_attendance() {
var e = document.getElementById("class_id");
var class_id = e[e.selectedIndex].value;
var date = $('#date').val();
$.ajax({
url: '<?php echo base_url();?>index.php?admin/manage_attendance/'+ date +'/' + class_id,
success: function(response)
{
jQuery('#putdatahere').html(response);
}
});
}
</script>
CodeIgniter控制器
function manage_attendance($date, $class_id){
$query = $this->db->get_where('attendance', array('class_id' => $class_id , 'date' => $date))->result_array();
if($query){
$html_return = "";
foreach ($query as $attendance) {
$html_return .="<tr><td>";
$html_return .= $attendance['status']; //further Proccessing here e.g if $attendance['status'] == 0 echo absent otherwise present
$html_return .="</td><td>";
$html_return .= $attendance['student_id']); //further Proccessing here e.g get student name from its student_id
$html_return .="</td><td>";
$html_return .= $attendance['class_id']; //further Proccessing here e.g get class name from its class_id
$html_return .= "</td><td>";
$html_return .= $attendance['date'];
$html_return .="</td></tr>";
}
echo $html_return;
} else {
echo 'No record';
}
}
答案 2 :(得分：0)
You have to append data like this using jquery:
function get_attendance() {
var class_id = $('#class_id').val();
var date = $('#date').val();
$.ajax({
type: "post",
dataType:"json",
data: {class_id: class_id, date: date},
url: '<?php echo base_url();?>index.php?admin/manage_attendance',
success: function (data) {
var resultData = JSON.parse(response);
if(resultData!=null){
attendance= resultData.length;
}
if(attendance>0){
for(i=0;i<attendance;i++){
$(".attendance_listing").append("<tr><td>"+resultData[i].status+"</td><td>"+resultData[i].student_id+"</td><td>"+resultData[i].class_id+"</td><td>"+resultData[i].date+"</td></tr>");
}
}
}
});
}
//controler
function manage_attendance()
{
if($this->session->userdata('admin_login')!=1){
redirect(base_url() , 'refresh');
$date = $this->input->post('date');
$class_id = $this->input->post('class_id');
$page_data['attendance']= $this->db->get_where('attendance', array('class_id' => $class_id , 'date' => $date))->result_array();
$page_data['page_name'] = 'manage_attendance';
$page_data['page_title'] = get_phrase('manage_daily_attendance');
echo json_encode($page_data);
}
}